BVOTOMYS 625 



Red of dorsal area not conspicuously contrasted 

 with yellowish brown of sides ; ear scarcely 

 overtopping fur; m? normally with third 

 re-entrant angle on inner side (Channel 



Islands) E. cmsarius, p. 645. 



Skull of adult delicate or slightly massive, its size 

 small or moderate, the condylobasal length 

 rarely 26 mm. (21-5 to 26-2 mm.); teeth 

 light or moderately heavy, the length of 

 tooth-rows rarely 6 mm. (4-8 to 6 mm.) ; ear 

 decidedly overtopping fur. 

 Nasal decidedly longer than diastema [hind foot 

 18 to 19 mm. ; condylobasal length of skull 

 24 ■ 8 to 25 • 8 mm. ; colour bright, the line 

 of demarcation along sides of body notice- 

 able] (Skomer Island, Wales) E. skomerensis, p. 644. 



Nasal about equal to diastema, rarely much 



longer E. glareolus, p. 626. 



Size smaller, hind foot usually less than 18 mm. 

 (15 - 4 to 18 mm.); condylobasal length 

 of skull usually less than 24-5 mm. 

 (21-5 to 24 "5 mm.). Characteristically 

 lowland forms. 

 General colour above light and bright 



(Drainage system of the Danube) E. g. istericus, p. 637. 



General colour above dark or dull. 

 Red of dorsal area showing little if any 

 tendency to suffuse sides and rump 

 (Central and southern Sweden ; 



southern and eastern Norway) E. g. suedms, p. 636. 



Red of dorsal area tending to suffuse sides 

 and rump. 

 Size medium, hind foot 16 ■ 6 to 17*6 

 mm., condylobasal length of skull 

 23 to 24 "6 mm. ; colour dark and 

 usually bright (West-central conti- 

 nental Europe) E. g. glareolus, p. 632. 



Size smallest, hind foot often less than 

 16 • 6 mm. (15 '4 to 17 mm.), condy- 

 lobasal length of skull often less 

 than 23 mm. (21-5 to 24 .-2 mm.) ; 



colour dark and dull (Great Britain) E. g. britannicus, p. 634. 

 Size larger, hind foot usually more than 

 18 mm. (17 to 20 mm.) ; condylobasal 

 length of skull usually more than 24 • 5 mm. 

 (23 to 26-2 mm.). 

 Third upper molar usually with two re- 

 entrant angles on inner side. 

 Red dorsal area broad, not well-defined 

 from buffy grey sides (Western 



Norway) E. g. norvegicus, p. 638. 



Red dorsal area narrow, well defined from 



dull grey sides (Pyrenees) E. g. vasconix, p. 639. 



Third upper molar usually with three re- 

 entrant angles on inner side. 

 Size smaller (hind foot 17 to 19 mm., 

 condylobasal length of skull 23 to 

 25 ■ 4 mm.) ; colour lighter (Jura to 



south-western Alps) E.g. helvetictu, p. 640. 



2 s 



